When the Ca2+ levels drop:

Myosin LC is dephosphorylated by MLC phosphatase, causing muscle relaxation.

TLS Online TPP Program

#Id: 9154

#XL - T Zoology

TLS Online TPP Program

#Id: 7932

#XL - Q Biochemistry

Signal sequence

ER targeting sequence, located at the N-terminus of the protein

TLS Online TPP Program

#Id: 9367

#XL - T Zoology

BMP proteins, activate a different set of receptors that are similar to the TGF-β RI and RII proteins but phosphorylate other R-Smads, Smad1, Smad5, & Smad8

TLS Online TPP Program

#Id: 8524

#XL - Q Biochemistry

Detyrosylation 

tyrosine can be removed by a carboxypeptidase, where it sequentially removes the C-terminal tyrosines from α-tubulin subunits. 

TLS Online TPP Program

#Id: 8346

#XL - Q Biochemistry

Formins are activated by membrane-bound Rho-GTP, a Ras-related small GTPase